If you're willing to stretch things a bit, it's a holiday of sorts, commemorating the day 2,060 years ago when Julius Caesar got stabbed in the back -- and the front, and the side, the top and pretty much everywhere else.

It's famous primarily thanks to William Shakespeare's play "Julius Caesar," in which a soothsayer warns the Roman leader to "beware the ides of March," which in the parlance of the times just meant the middle of the month (every other month had an ides, too).